5-7.txt

jsp常用实例讲解

public class MatrixMultiply{
public static void main( String args[] ){
int i,j,k;
int a[][]=new int[2][3];
int b[][]={ {1,5,2,8},{5,9,10,-3},{2,7,-5,-18} };
int c[][]=new int[2][4];
for( i=0; i＜2; i++ )
	for( j=0; j＜3; j++ )
		a[i][j]=(i+1)*(j+2);
for( i=0; i＜2; i++ ){
	for( j=0; j＜4; j++ ){
		c[i][j]=0;
		for( k=0; k＜3; k++ )
		c[i][j]+=a[i][k]*b[k][j];
	}
}
System.out.println("\n*** Matrix A ***");
for( i=0; i＜2; i++ ){
	for( j=0; j＜3; j++ )
		System.out.print(a[i][j]+" ");
	System.out.println();
}
System.out.println("\n*** Matrix B ***");
for( i=0; i＜3; i++ ){
	for( j=0; j＜4; j++ )
		System.out.print(b[i][j]+" ");
	System.out.println();
}
System.out.println("\n*** Matrix C ***");
for( i=0; i＜2; i++ ){
	for( j=0; j＜4; j++ )
		System.out.print(c[i][j]+" ");
	System.out.println();
}
}
}